Method assertRaisesRegex

Lib/unittest/case.py:1400–1414

Asserts that the message in a raised exception matches a regex. Args: expected_exception: Exception class expected to be raised. expected_regex: Regex (re.Pattern object or string) expected to be found in error message. args: Function

(self, expected_exception, expected_regex,
                          *args, **kwargs)

            self.fail(self._formatMessage(msg, standardMsg))

    def assertRaisesRegex(self, expected_exception, expected_regex,
                          *args, **kwargs):
        """Asserts that the message in a raised exception matches a regex.

        Args:
            expected_exception: Exception class expected to be raised.
            expected_regex: Regex (re.Pattern object or string) expected
                    to be found in error message.
            args: Function to be called and extra positional args.
            kwargs: Extra kwargs.
            msg: Optional message used in case of failure. Can only be used
                    when assertRaisesRegex is used as a context manager.
        """
        context = _AssertRaisesContext(expected_exception, self, expected_regex)
        return context.handle('assertRaisesRegex', args, kwargs)

    def assertWarnsRegex(self, expected_warning, expected_regex,
                         *args, **kwargs):